baber/WOPTO huggingface dataset:
Patent GB-500805-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J29/28
Filed: 1937-08-19
Abstract: 500,805. Cathode-ray tubes. EHRENBERG, W., and HENDERSON, S. T. Aug. 19, 1937, No. 22709. [Class 39 (i)] In an electron-discharge device such as cathode-ray tubes for television having a fluorescent screen carried on an insulating support, and operating at such high voltages that when the screen is impinged by the high velocity electrons, the ratio of secondary to primary electrons is less than unity, the screen is prevented from becoming charged due to the excess of primary over secondary electrons by making it of a material, such as zinc sulphide or zinc beryllium silicate, which is normally insulating but behaves as if it wero conducting under the impact of cathode rays, and applying to it a source of potential. As shown, the fluorescent material 10 is applied to the end wall 11 of a cathode-ray tube operating at a high voltage of 10000 V. or over for projection viewing. A conducting frame 14 is formed around the screen by silvering or depositing a metal or alloy, and is connected to the second anode 8 or other source of potential. Alternatively, the anode 8 may be extended to the window to form the frame. In a modification, the screen may be provided with fine lines of conducting material. Specifications 381,306, 402,411, 406,009, 430,809, 467,493, and 478,971 are referred to.
Patent GB-353705-A (GB)
Title: Device for securing in the open position the lid of trunks, suitcases, boxes and thelike
IPC: A45C13/34
Filed: 1930-07-29
Abstract: 353,705. Stays for lids. SIPOCZ, H., 29, Rechte Wienzeile, Vienna. July 29, 1930, No. 22805. [Class 65 (i).] A stay for the lid of a trunk or case comprises a link 3, hinged to the case at 2, which engages with a hook 6 on the lid when the lid is open. The link is continuously pressed into engagement with the lid bv the arm 5 of a spring coiled on the hinge 2, so that the end of the link cannot catch the contents of the case. The hook 6 is preferably formed with a narrow resilient mouth, so that considerable pressure on the lid is necessary to force the link out of engagement with the hook.
Patent GB-224042-A (GB)
Title: A new or improved appliance for holding, clamping and pressing meat
IPC: A22C7/00
Filed: 1923-09-13
Abstract: 224,042. Horwich, M. I. Sept. 13, 1923. Pressing - and - cooking apparatus.-In a device for pressing meat, particularly boneless ham, and holding it during cooking, of the type comprising a cylindrical metal sheet which is pressed around the meat in a clamp, the edge 3 is beaded around a rod or wire 6 which serves as a hinge for a locking-strip 5 having holes which are engaged with a pin 9. The beaded edge 3 serves as an abutment for the clamping- jaw 13, the abutments 10 for the lower jaw being spaced from the edge 4 to allow the edges 3, 4 of the metal sheet to overlap. The clamp is supported on feet 11 and is provided with a handle 15.
Patent GB-1076145-A (GB)
Title: Electrical connectors and elements therefor
IPC: H01R12/61
Filed: 1964-06-06
Abstract: 1,076,145. Cable couplings. MINNESOTA MINING AND MANUFACTURING CO. June 6, 1964 [Juno 6, 1963], No. 23020/64. Addition to 995,417. Heading H2E. In a connector for interconnecting two tape cables as described in Specification 995,417, the contact element 45 comprises a single pair of oppositely directed contact arms (46, 47) and one or more resilient members (49) extending from their junction to retain the element in the socket 44 between the cover 40 and the base 41 of the connector.
Patent GB-388040-A (GB)
Title: Improvements in apparatus for recording or reproducing sound films
IPC: G11B7/00
Filed: 1931-08-15
Abstract: 388,040. Recording and reproducing sound optically. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Herriott, W. ; 224, Smith Street, Freeport, New York, U.S.A.) Aug. 15, 1931, No. 23030. Convention date, April 24. [Class 40 (ii).] In sound-film recording or reproducing apparatus, the uniform position of the lamp filament 28 with relation to the optical projection system 11 is checked during use and ensured after replacement by the provision of a fixed screen 2 having crossed lines or other markings on which an image of the filament is thrown by a lens system 1. The setting is made with the apparatus in the optimum arrangement, and for this' purpose the lens system and the screen are provided with adjustments to enable them to be set so as to obtain a clear image of the filament in proper register with the markings. They are then set in this position and utilized in subsequent adjustments of the recording or reproducing apparatus.
Patent GB-898579-A (GB)
Title: Improvements in or relating to paper
Inventor: GRAHAM JOHN BRISTOW MINISS
IPC: D21H11/12
Filed: 1959-07-04
Abstract: 898,579. Paper. VULCANITE Ltd. May 11, 1960 [July 4, 1959], No. 23067/59. Class 96. Paper contains peat and vegetable fibres, the peat amounting to between 50% and 80% of the total fibrous ingredients. The vegetable fibres may be textile waste. Animal fibres such as wool may also be included.
Patent GB-1514726-A (GB)
Title: Method of treating an exhaust gas
IPC: B01D53/77
Filed: 1975-05-28
Abstract: 1514726 Wet-treating exhaust gases MITSUBISHI JUKOGYO KK 28 May 1975 [31 May 1974] 23279/75 Heading C1A An exhaust gas containing an oxide of nitrogen and an oxide of sulphur is wet-treated to remove oxides of nitrogen and sulphur by (1) washing the exhaust gas with an aqueous slurry of lime or limestone to remove oxide of sulphur, (2) washing the treated gas from (1) with an aqueous solution of an alkali metal iodide and/or alkaline-earth metal iodide to remove the oxide of nitrogen and (3) contacting the treated slurry from (1) with the aqueous solution from (2) to regenerate alkaline or alkaline-earth iodide and to decompose the nitrite formed in step (2) to nitrogen. The exhaust gas from (1) may be oxidised with agents such as nitric acid, H 2 O 2 , and ozone to convert nitric oxide to nitrogen dioxide before being subjected to (2). The used absorbing liquid from step (2) may be supplied to step (1) and a part of the used slurry from (1) may be forwarded to step (2). The slurry from step (3) may be oxidised to convert calcium sulphite to sulphate, preferably under acidic conditions, and the gypsum is separated from the filtrate containing the alkaline iodide and/or the alkaline-earth iodide which may be reused in step (2). Specification 1,493,980 is referred to.
Patent GB-286322-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M19/02
Filed: 1926-09-23
Abstract: 286,322. Smith, F. A. Sept.. 23, 1926. Spray carburettors. - In carburetting - apparatus of the kind in which rich mixture is supplied to the main air stream through a diffuser comprising a narrow slit opening into the main air supply conduit, the diffuser is formed or situated in close proximity to the cylinder it supplies, and a valve controlling the supply of liquid fuel to the rich mixture forming-device is interconnected' with the valve controlling the main air supply. As shown, the diffuser comprises two plates 10, 11, Fig. 1, secured together face to face and recessed to form an annular chamber 16 which communicates with the rich mixture inlet 19 and a narrow outlet slit 17, bolt holes 13 being provided whereby the device is secured between the main air supply conduit and the cylinder. To facilitate the flow of rich mixture into the main air stream, the wall of the orifice 17 remote from the cylinder may be of smaller diameter than the wall adjacent the cylinder. In a modification, the diffuser is provided with several slits 17 and is formed by securing together several plates each provided with an annular groove, the plates being spaced apart by thin metal washers which determine the width of the slits. The fuel in the rich mixture is controlled by a needle valve 23, Fig. 5, the fuel mixing with air entering at 22 and the rich mixture passing through an outlet 24 connected to the inlet 19 of the diffuser. The valve 23 is carried by a piston 25 in a cylinder 26, suction being transmitted to the under side of the piston through a groove or flat on the stem of the valve 23. The piston rod 28 is provided with an abutment 29 for a spring 30 which bears on a collar 31 mounted on a sleeve 32. The sleeve 32 enters the cylinder 26 and carries a plate 33 abutting the piston 25. A tube 36 carried by the collar 31 acts as a stop for the abutment 29. The collar 31 is engaged by one arm 34 of a bell-crank lever the other arm 35 of which is adjustably connected to the throttle valve in the main air supply conduit. The needle valve 23, the setting of which is controlled by the position of the main air valve, is thus free to move to a limited extent under the action of the suction in the outlet 24, the extent of its movement being determined by the abutment 29 engaging the tube 36, and the plate 33 engaging the piston. Specification 154,920 is referred to.
Patent GB-1508998-A (GB)
Title: Closure member
IPC: F16J13/08
Filed: 1974-05-28
Abstract: 1508998 Pressure vessel and pipe closures GENERAL DESCALING CO Ltd 21 May 1975 [28 May 1974] 23537/74 Heading F2P A closure member for a pipe or pressure vessel comprises a door 38 to fit into an aperture in the body 1 of the pipe or pressure vessel, a plurality of blocks 8 slidably mounted adjacent the periphery of the door and movable from a position within the periphery to one in which a part of each block 8 protrudes beyond the periphery to locate in an annular groove 2 in the aperture. In a preferred embodiment the annular grooves and correspondingly profiled block surfaces have thread-like cross-sections of buttress form as at 2, or alternatively Acme or hook form as shown at 4 and 5 respectively. Each of the ten blocks 8 has a convexly arcuate outer surface and non-symmetrical obliquely intersecting planar surfaces 18 and 48, the surface 18 contacting abutment surface 17 of a backing plate 15 fixed to the door, to guide each block, aided by location of a keyway of the block in a groove 19 of the plate 15, in its part-linear travel to or from its engaged position, the linear part being in a direction of approximately 45 degree to the radial direction and the movement being actuated by fluid cylinders 50. The door has a thrust face 14 which contacts a flat face 13 of each block and the door is sealed by a U- section annular lip seal 23 incorporating a rigid annular steel hoop 28 which the periphery of the door contacts when shut, the seal assembly being retained in the aperture by location of a retaining ring 30 in a recess of the aperture over an outer edge portion 32 of the seal. Thrust bars 37 are located in grooves around the periphery of the door and seal the inter-block spaces when the closure member is operative and on retraction of the blocks, co-operation of inclined faces of block and thrust bar 37 retract the thrust bar, which in addition to its inherent elasticity may be spring loaded, so as to provide venting of excess pressure in the pipe or vessel by unseating the seal assembly while ensuring against possible "blowing out" of the door as the tail of each block is still engaged in the groove in the aperture, retaining the door in place. Conventional vent-type bleeder screws could also be used as a fail safe device. As an alternative to cylinders 50 the blocks could be actuated by a ring lying above the circle of blocks each engaging with a spring link together with partial rotation of the ring, or a multi-armed spider could be rotatably mounted on a central hub and a block attached to each arm.
Patent GB-974123-A (GB)
Title: Improvements in or relating to ball point pen,inks,and to methods of filling such pens therewith
IPC: C09D11/18
Filed: 1961-06-29
Abstract: Ball point pens and refills therefor contain an ink in paste form comprising a polar or non-polar dispersing medium having dispersed therein finely-divided aluminium, silver or copper, or an alloy or mixture thereof, in an amount of from 5 to 95% of the total weight of the ink. The metal may be in the form of flakes of from 5 to 15 microns.  In examples, the medium comprises (1) sulphonated castor oil, polyglycol (M.W.400) and glycerol, (2) chlorinated coumarone resin, dioctyl phthalate and castor oil, and (3) coumarone resin and dioctyl phthalate.  The ink may be introduced into the pen through the tip, and the ball thereafter inserted; preferably an annular gap of 1 x 10-3 to 2.5 x 10-3 cm. is left between the ball and the edge of the tip.ALSO:Ball point pens and refills therefor contain an ink in paste form comprising a polar or nonpolar dispersing medium having dispersed therein finely-divided aluminium, silver or copper, or an alloy or mixture thereof, in an amount of from 5 to 95% of the total weight of the ink. The metal may be in the form of flakes of from 5 to 15 microns.  In examples, the medium comprises (1) sulphonated castor oil, polyglycol (M.W. 400) and glycerol, (2) chlorinated coumarone resin, dioctyl phthalate and castor oil, and (3) coumarone resin and dioctyl phthalate. The ink may be introduced into the pen through the tip, and the ball thereafter inserted; preferably an annular gap of 1 \sL 10-3 to 2.5 \sL 10-3 cm. is left between the ball and the edge of the tip.
Patent GB-1527384-A (GB)
Title: Filtering apparatus
IPC: B01D37/02
Filed: 1976-06-08
Abstract: 1527384 Filter with emergency pumping system FILTROX MASCHINENBAU AG 8 June 1976 [11 July 1975] 23605/76 Heading B1D [Also in Division G3] A filter apparatus comprising an alluvial filter 10 wherein filter aid is held upon vertical filter surfaces by the flow of liquid being filtered and which comprises a recycle conduit 13 communicating between the filtrate outlet conduit 12 and the intake side 16 of a pump 7 (driven by an electric motor) in the inlet conduit for liquid to be filtered which in association with valves 1, 2, 3 allows for recycling of filtrate for deposition of filter aid or to maintain the filter aid layer in the presence of a blockage of the unfiltered liquid supply duct and/or the filtrate discharge duct is characterised by the presence of an emergency running system to maintain recirculation flow in the advent of a current supply failure to the electric motor driving the pump and comprising a water turbine 21 arranged to drive pump 7 or an additional pump (Fig. 3, not shown) to maintain the recirculation flow and control means which in the advent of current failure is arranged to open valve 4 in the water supply to the turbine and at the same time to close valves 1 and 3 and open valve 2 to change from filtration flow to recirculation flow. The valves may be pneumatically controlled via electromagnetic switches which operate upon current failure. Valves 1, 2 and 3 may be similarly arranged to operate upon blockage of the inlet and/or outlet ducts to and from the apparatus. The illustrated apparatus further comprises means 8, 9 for applying a filter aid, such as kielselguhr, to the filter elements which may be vertically mounted filter candles. The apparatus may be used for filtering wines, spirits or beer.
Patent GB-307690-A (GB)
Title: An improved tool chuck
IPC: B23B31/20
Filed: 1928-08-16
Abstract: 307,690. G÷rg, H. Aug. 16,1928. Chucks and sockets.-In a bevel.closing chuck of the kind having a number of segmental clamping members located in the body of the chuck and moved axially on inclined surfaces by means such as a spring-loaded bolt provided with collars engaging the ends of the segments, wedge members are placed between the segments to transmit a positive drive from the chuck body to the tool. In one form a collet composed of segmental members 2, Fig. 1, is drawn into a conical recess in the body 8 by the end of the tool-shank 1 engaging the end of an axially movable bolt 13 which is provided with an annular groove 4 to co-act with hooked ends 6 on the members 2. Two wedges 3, axially fixed in the body engage opposed key-ways on the shank of the tool to transmit the drive if the tool tends to slip in the collet. The tool is released by means of an ejector 12 coacting with the end of the bolt 13 and the collet is moved outwards by a spring 9, outward movement being limited by a, spring ring 14. In a modification the bolt 13, (Fig. 2. left half), is moved axially for actuating the collet 2 in either direction by a transverse pin 15 whose ends engage a ring 16 axially slidable by means of a rotary ring 17 screwing on an externally threaded part of the body 8. The wedges 3 engaging the key-ways in the tool-shank are also moved axially by a sliding ring 19 moved by a rotary ring 20 securing on the body. In a further modification shown in the right hand half of Fig. 2 an annular flange 22 at the lower end of the collet engages a groove in a screw cap 23 securing on the exterior of the body 8 and the wedges 3 are moved by sliding and rotary rings 19, 20, respectively. In another modification the collet 2 and wedges 3 are mounted within a conical recess 7, Fig. 3, in a body 24 which is removable as a self-contained unit together with the tool 1 from a socket in the machine spindle 26. The body is held in the socket by radially arranged pins 27 having rounded ends and pressed inwards by tapered recesses in an axially sliding ring 25. The bolt 28 which actuates the collet 2 is operated when the chuck and tool have been removed from the socket 26. In a further modification the collet is moved axially by a rotary spindle securing in the upper end of the chuck body and having an anular groove at the lower end engaging the in-turned ends of the collet segments.
Patent GB-934205-A (GB)
Title: Improvements in or relating to register stages
IPC: G11C11/28
Filed: 1962-06-20
Abstract: 934,205. Electronic counting and calculating apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 20, 1962 [June 23, 1961; July 12, 1961], No. 23731/62. Class 106 (1). A decimal register stage comprises bi-stable electronic tubes adapted to register a decimal digit in a 2-out-of-7 biquinary code, means being provided either for multiplying or for dividing the registered digit by two. Fig. 6 shows a register comprising four decimal stages each stage taking the form shown in Fig. 3 and comprising firstly means for adding unity to the digit registered by applying a pulse to a terminal r i  and secondly means for multiplying by two the digit registered by applying a pulse to a terminal X2. In operation, the register, Fig. 6, is first zeroized by applying a pulse to a terminal O. An operand is entered by applying an appropriate number of pulses to the respective denominational stages over leads a, b, c, d. A pulse applied to the terminal X2 then causes the digit registered in each stage to be doubled, subsequent application of a plurality of pulses to a terminal r causing any carries stored to be propagated. As shown in Fig. 3, a register stage comprises tubes 0-4 for the first five places of the biquinary code, tubes 5<SP>1</SP>, 5<SP>11</SP>, 5<SP>111</SP> for the sixth place and tubes 6<SP>1</SP>, 6<SP>11</SP> for the seventh place, the tubes being so connected that only one of the tubes 0-4 together with one of the " 5 " and " 6 " tubes can conduct at any one time. A tube 7 serves as a carry store. A pulse applied to the terminal 0 causes tubes 0 and 5<SP>1</SP> to fire (representing zero in the biquinary code). Each pulse applied to the terminal r i  causes unity to be added to the digit registered. A pulse applied to the terminal X2 causes the digit registered to be doubled, as shown in the " X2 " column of Fig. 1, the tube 7 being fired if a carry is required. If a pulse is now applied to the terminal r i , and the tube 7 is conducting, a tube r is fired thereby producing an output carry pulse for the next order at a terminal r n . A modified register for dividing by two is described (Figs. 4, 7, not shown), there being two inputs for each stage energized according to whether or not a " 1 " is carried down from a higher to the next lower stage. This modified register employs a different biquinary code for representing decimal digits.
Patent GB-732204-A (GB)
Title: Improvements in or relating to methods of heat exchange and apparatus therefor
IPC: F28D7/16
Filed: 1953-08-27
Abstract: 732,204. Tubular heat-exchangers. FARRER, J. O. (Lummus Co.). Aug. 27, 1953, No. 23754/53. Class 64 (3). Relates to a method and apparatus for exchanging heat between two fluids through the medium of a third or intermediate fluid which is maintained in an independent space surrounded by one of the heat-exchanging fluids and surrounding the other of the two fluids and which is employed to detect leakage thereto of either of the heat exchanging fluids, the said independent space including at each end thereof an inner chamber in juxtaposition with an outer chamber, said inner and outer chambers respectively containing part of the intermediate fluid and part of the said other of said two fluids. According to the invention the intermediate fluid is contained in a closed outside circuit communicating at its opposite ends with said inner chambers, means being provided in said circuit to measure any significant change in a predetermined characteristic of the intermediate fluid to indicate leakage of either of the said two fluids. The intermediate fluid acting as a heat transfer medium may be circulated by a pump or allowed to remain static. Any or all of the fluids may be liquid or gaseous. The presence of leakage fluid or of rays or of electronic flux therefrom may be detected in the intermediate fluid by change in colour of the latter fluid or by change in odour, pressure, viscosity or by any other change whether physical or chemical. In the form shown one of the two fluids between which heat is exchanged flows between header 5 and tubes 12 to header 3 leading to outlet nozzle 15, andthe other of the heat exchanging fluids flows from inlet 18 through casing 1 over tubes 13 in a tortuous path as directed by baffles 32 to outlet 19. The intermediate fluid is contained in the annular spaces between concentric tubes 12, 13, headers 2, 4 communicating with these spaces and an external path including a pipe-line 23, 26, 16, pump 27, sight glass 28 preferably with flow indicating means, pressure relief valve 24 and electrical conductivity meter 29. Samples of the intermediate fluid may be drawn off through the tap 25 for inspection and analysis. Expansion joints 20, 21 permit relative expansion between the tubes and the casing.
Patent GB-751448-A (GB)
Title: Improvements in or relating to devices for fastening bubble caps
IPC: B01D3/20
Filed: 1954-08-16
Abstract: 751,448. Treating liquids with gases. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 16, 1954 [Aug. 18, 1953], No. 23761/54. Class 55(2). Means for fastening bubble caps in position on the trays of scrubbing &c. towers comprise a .bolt 6 and a resilient supporting structure 7 secured to it, the device being inserted in and removed from the tray opening from a position above the tray ; on insertion it is held by the pressure of the resilient structure which has to be deformed to fit into the opening. The cap 1 is supported on spacers 2 of a riser 3 and secured to the bolt by means of nuts 8 and a washer 9. In the form shown structure 7 has four resilient arms with a rounded shoulder at an intermediate point along the upper edge so that when the bolt is inserted slantwise and pulled vertically upwards the edge of the opening slides over the shoulders and bends the arms inwardly. In modifications the resilient structure has two and three curved arms ; in one form each of two opposed arms consists of a complete loop. In all embodiments at least two arms have a projection engaging the underside of the tray.